package org.jbit.news.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class EncodingFilter implements Filter {
	private String charset = null;
	public void init(FilterConfig filterConfig) throws ServletException {
		String initParam = filterConfig.getInitParameter("charset");
		if (initParam != null && (initParam.trim().length() != 0)) {
			charset = initParam;
		}
	}
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		if (charset != null) {
			request.setCharacterEncoding(charset);
			response.setCharacterEncoding(charset);
		}
		chain.doFilter(request, response);

	}
	public void destroy() {
		// TODO Auto-generated method stub

	}

}
